List of usage examples for com.google.gwt.event.dom.client ScrollHandler ScrollHandler
ScrollHandler
From source file:cc.alcina.framework.gwt.client.cell.ShowMorePager.java
License:Apache License
public void attachTo(HasRows display, ScrollPanel scrollable) { setDisplay(display);// w w w.ja va 2 s . c o m // Handle scroll events. scrollable.addScrollHandler(new ScrollHandler() { @Override public void onScroll(ScrollEvent event) { // If scrolling up, ignore the event. int oldScrollPos = lastScrollPos; lastScrollPos = scrollable.getVerticalScrollPosition(); if (oldScrollPos >= lastScrollPos) { return; } HasRows display = getDisplay(); if (display == null) { return; } int scrollPanelContentsHeight = scrollable.getWidget().getOffsetHeight(); int scrollPanelHeight = scrollable.getOffsetHeight(); int maxScrollTop = scrollPanelContentsHeight - scrollPanelHeight - 20; // hack but not sure how to deal with said autoscrolls if (Math.abs(lastScrollPos - oldScrollPos) > 500) { // handle autoscroll to end return; } if (lastScrollPos >= maxScrollTop) { // We are near the end, so increase the page size. int newPageSize = Math.min(display.getVisibleRange().getLength() + incrementSize, display.getRowCount()); if (newPageSize != 0) { Range newRange = new Range(0, newPageSize); if (display.getVisibleRange().getStart() == newRange.getStart() && display.getVisibleRange().getLength() >= newRange.getLength()) { // don't show a smaller visible range (which would // force a search) return; } display.setVisibleRange(0, newPageSize); } } } }); }
From source file:cc.kune.gspace.client.i18n.ShowMorePagerPanel.java
License:Apache License
/** * Construct a new {@link ShowMorePagerPanel}. *//*from w w w. j av a 2s . c o m*/ public ShowMorePagerPanel() { initWidget(scrollable); // Do not let the scrollable take tab focus. scrollable.getElement().setTabIndex(-1); // Handle scroll events. scrollable.addScrollHandler(new ScrollHandler() { @Override public void onScroll(final ScrollEvent event) { // If scrolling up, ignore the event. final int oldScrollPos = lastScrollPos; lastScrollPos = scrollable.getScrollPosition(); if (oldScrollPos >= lastScrollPos) { return; } final HasRows display = getDisplay(); if (display == null) { return; } final int maxScrollTop = scrollable.getWidget().getOffsetHeight() - scrollable.getOffsetHeight(); if (lastScrollPos >= maxScrollTop) { // We are near the end, so increase the page size. final int newPageSize = Math.min(display.getVisibleRange().getLength() + incrementSize, display.getRowCount()); display.setVisibleRange(0, newPageSize); } } }); }
From source file:cimav.visorglass.client.widgets.components.ScrollingPager.java
License:Apache License
public ScrollingPager() { initWidget(scrollable);/* ww w. j a va 2 s .c o m*/ scrollable.setPixelSize(250, 350); scrollable.getElement().getStyle().setBorderWidth(1, Style.Unit.PX); scrollable.getElement().getStyle().setBorderColor("red"); scrollable.getElement().setTabIndex(-1); // Handle scroll events. scrollable.addScrollHandler(new ScrollHandler() { @Override public void onScroll(ScrollEvent p_event) { // If scrolling up, ignore the event. int oldScrollPos = lastScrollPos; lastScrollPos = scrollable.getVerticalScrollPosition(); if (oldScrollPos >= lastScrollPos) { return; } HasRows display = getDisplay(); if (display == null) { return; } int maxScrollTop = scrollable.getWidget().getOffsetHeight() - scrollable.getOffsetHeight(); if (lastScrollPos >= maxScrollTop) { // We are near the end, so increase the page size. int newPageSize = Math.min(display.getVisibleRange().getLength() + incrementSize, display.getRowCount()); display.setVisibleRange(0, newPageSize); } } }); }
From source file:co.fxl.gui.gwt.GWTScrollPane.java
License:Open Source License
GWTScrollPane(final GWTContainer<ScrollPanel> container) { super(container); widget().setWidth("100%"); widget().setAlwaysShowScrollBars(false); widget().getElement().getStyle().setProperty("overflowX", "hidden"); container.widget.addScrollHandler(new ScrollHandler() { @Override/*w ww. j a v a 2 s . co m*/ public void onScroll(ScrollEvent event) { final int scrollPosition = scrollOffset(); if (initialScrollPosition != -1 && scrollPosition != initialScrollPosition) { int lp = initialScrollPosition; initialScrollPosition = -1; setScrollPosition(lp); } else fireScrollListeners(scrollPosition); } }); }
From source file:com.ait.lienzo.client.widget.panel.scrollbars.ScrollablePanel.java
License:Apache License
void setupHandlers() { // Mouse handlers. register(addMouseDownHandler(new MouseDownHandler() { @Override/*from w w w. j a v a2 s . c om*/ public void onMouseDown(MouseDownEvent e) { ScrollablePanel.this.onStart(); } })); register(addMouseUpHandler(new MouseUpHandler() { @Override public void onMouseUp(MouseUpEvent e) { ScrollablePanel.this.onComplete(); } })); register(addMouseOutHandler(new MouseOutHandler() { @Override public void onMouseOut(MouseOutEvent event) { ScrollablePanel.this.onComplete(); } })); register(addScrollHandler(new ScrollHandler() { @Override public void onScroll(final ScrollEvent scrollEvent) { ScrollablePanel.this.onSroll(); } })); register(addAttachHandler(new AttachEvent.Handler() { @Override public void onAttachOrDetach(final AttachEvent event) { if (event.isAttached()) { onResize(); } } })); }
From source file:com.ait.lienzo.client.widget.panel.scrollbars.ScrollablePanelHandler.java
License:Apache License
ScrollHandler onScroll() {
return new ScrollHandler() {
@Override/*from w w w . j av a2 s . co m*/
public void onScroll(ScrollEvent event) {
final ScrollBars scrollBars = scrollBars();
ScrollablePanelHandler.this.updateLienzoPosition(scrollBars.getHorizontalScrollPosition(),
scrollBars.getVerticalScrollPosition());
}
};
}
From source file:com.alkacon.geranium.client.ui.ScrollPanel.java
License:Open Source License
/** * Enables or disables the focused scrolling feature.<p> * Focused scrolling is enabled by default.<p> * // ww w . ja v a 2s . c o m * @param enable <code>true</code> to enable the focused scrolling feature */ public void enableFocusedScrolling(boolean enable) { if (enable) { if (m_handlerRegistration == null) { m_handlerRegistration = addScrollHandler(new ScrollHandler() { public void onScroll(ScrollEvent event) { ensureFocusedScrolling(); } }); } } else if (m_handlerRegistration != null) { m_handlerRegistration.removeHandler(); m_handlerRegistration = null; } }
From source file:com.arcbees.gquery.tooltip.client.contactcell.ShowMorePagerPanel.java
License:Apache License
/** * Construct a new {@link ShowMorePagerPanel}. *///from w ww .j a va2 s .c o m public ShowMorePagerPanel() { init(); // Handle scroll events. scrollable.addDomHandler(new ScrollHandler() { public void onScroll(ScrollEvent event) { // If scrolling up, ignore the event. int oldScrollPos = lastScrollPos; lastScrollPos = scrollable.getElement().getScrollTop(); if (oldScrollPos >= lastScrollPos) { return; } HasRows display = getDisplay(); if (display == null) { return; } int maxScrollTop = scrollable.getWidget().getOffsetHeight() - scrollable.getOffsetHeight(); if (lastScrollPos >= maxScrollTop) { // We are near the end, so increase the page size. int newPageSize = Math.min(display.getVisibleRange().getLength() + incrementSize, display.getRowCount()); //all children will be replaced, ensure to destroy existing tooltip in order to avoid ghost // tooltips GQuery.$(".tooltipable", (Widget) display).as(Tooltip.Tooltip).destroy(); display.setVisibleRange(0, newPageSize); } } }, ScrollEvent.getType()); }
From source file:com.bearsoft.gwt.ui.widgets.grid.Grid.java
public Grid(ProvidesKey<T> aKeyProvider) { super();//from w w w.j ava 2s . c o m getElement().getStyle().setPosition(Style.Position.RELATIVE); getElement().appendChild(tdsStyleElement); getElement().appendChild(cellsStyleElement); getElement().appendChild(oddRowsStyleElement); getElement().appendChild(evenRowsStyleElement); setRowsHeight(25); hive = new FlexTable(); setWidget(hive); hive.setCellPadding(0); hive.setCellSpacing(0); hive.setBorderWidth(0); headerLeft = new GridSection<T>(aKeyProvider); headerLeftContainer = new ScrollPanel(headerLeft); headerRight = new GridSection<T>(aKeyProvider); headerRightContainer = new ScrollPanel(headerRight); frozenLeft = new GridSection<T>(aKeyProvider) { @Override protected void replaceAllChildren(List<T> values, SafeHtml html) { super.replaceAllChildren(values, html); footerLeft.redrawFooters(); } @Override protected void replaceChildren(List<T> values, int start, SafeHtml html) { super.replaceChildren(values, start, html); footerLeft.redrawFooters(); } }; frozenLeftContainer = new ScrollPanel(frozenLeft); frozenRight = new GridSection<T>(aKeyProvider) { @Override protected void replaceAllChildren(List<T> values, SafeHtml html) { super.replaceAllChildren(values, html); footerRight.redrawFooters(); } @Override protected void replaceChildren(List<T> values, int start, SafeHtml html) { super.replaceChildren(values, start, html); footerRight.redrawFooters(); } }; frozenRightContainer = new ScrollPanel(frozenRight); scrollableLeft = new GridSection<T>(aKeyProvider) { @Override protected void replaceAllChildren(List<T> values, SafeHtml html) { super.replaceAllChildren(values, html); footerLeft.redrawFooters(); } @Override protected void replaceChildren(List<T> values, int start, SafeHtml html) { super.replaceChildren(values, start, html); footerLeft.redrawFooters(); } }; scrollableLeftContainer = new ScrollPanel(scrollableLeft); scrollableRight = new GridSection<T>(aKeyProvider) { @Override protected void replaceAllChildren(List<T> values, SafeHtml html) { super.replaceAllChildren(values, html); footerRight.redrawFooters(); } @Override protected void replaceChildren(List<T> values, int start, SafeHtml html) { super.replaceChildren(values, start, html); footerRight.redrawFooters(); } }; scrollableRightContainer = new ScrollPanel(scrollableRight); footerLeft = new GridSection<>(aKeyProvider); footerLeftContainer = new ScrollPanel(footerLeft); footerRight = new GridSection<>(aKeyProvider); footerRightContainer = new ScrollPanel(footerRight); // positioning context / overflow setup // overflow for (Widget w : new Widget[] { headerLeftContainer, headerRightContainer, frozenLeftContainer, frozenRightContainer, scrollableLeftContainer, footerLeftContainer, footerRightContainer }) { w.getElement().getStyle().setOverflow(Style.Overflow.HIDDEN); } // scrollableRightContainer.getElement().getStyle().setOverflow(Style.Overflow.AUTO); // default value // context for (Widget w : new Widget[] { headerLeftContainer, headerRightContainer, frozenLeftContainer, frozenRightContainer, scrollableLeftContainer, scrollableRightContainer, footerLeftContainer, footerRightContainer }) { w.getElement().getFirstChildElement().getStyle().setPosition(Style.Position.ABSOLUTE); } // propagation of some widths headerLeft.setWidthPropagator(new GridWidthPropagator<T>(headerLeft) { @Override public void changed() { super.changed(); propagateHeaderWidth(); } }); for (GridSection<T> section : (GridSection<T>[]) new GridSection<?>[] { headerRight, frozenLeft, frozenRight, scrollableLeft, scrollableRight, footerLeft, footerRight }) { section.setWidthPropagator(new GridWidthPropagator<>(section)); } headerLeft.setColumnsPartners(new AbstractCellTable[] { frozenLeft, scrollableLeft, footerLeft }); headerRight.setColumnsPartners(new AbstractCellTable[] { frozenRight, scrollableRight, footerRight }); ColumnsRemover leftColumnsRemover = new ColumnsRemoverAdapter<T>(headerLeft, frozenLeft, scrollableLeft, footerLeft); ColumnsRemover rightColumnsRemover = new ColumnsRemoverAdapter<T>(headerRight, frozenRight, scrollableRight, footerRight); for (GridSection<T> section : (GridSection<T>[]) new GridSection<?>[] { headerLeft, frozenLeft, scrollableLeft, footerLeft }) { section.setColumnsRemover(leftColumnsRemover); } for (GridSection<T> section : (GridSection<T>[]) new GridSection<?>[] { headerRight, frozenRight, scrollableRight, footerRight }) { section.setColumnsRemover(rightColumnsRemover); } for (GridSection<T> section : (GridSection<T>[]) new GridSection<?>[] { frozenLeft, scrollableLeft, footerLeft }) { section.setHeaderSource(headerLeft); } for (GridSection<T> section : (GridSection<T>[]) new GridSection<?>[] { frozenRight, scrollableRight, footerRight }) { section.setHeaderSource(headerRight); } for (GridSection<T> section : (GridSection<T>[]) new GridSection<?>[] { headerLeft, frozenLeft, scrollableLeft }) { section.setFooterSource(footerLeft); } for (GridSection<T> section : (GridSection<T>[]) new GridSection<?>[] { headerRight, frozenRight, scrollableRight }) { section.setFooterSource(footerRight); } // hive organization hive.setWidget(0, 0, headerLeftContainer); hive.setWidget(0, 1, headerRightContainer); hive.setWidget(1, 0, frozenLeftContainer); hive.setWidget(1, 1, frozenRightContainer); hive.setWidget(2, 0, scrollableLeftContainer); hive.setWidget(2, 1, scrollableRightContainer); hive.setWidget(3, 0, footerLeftContainer); hive.setWidget(3, 1, footerRightContainer); for (Widget w : new Widget[] { headerLeftContainer, headerRightContainer, frozenLeftContainer, frozenRightContainer, scrollableLeftContainer, scrollableRightContainer, footerLeftContainer, footerRightContainer }) { w.setWidth("100%"); w.setHeight("100%"); } // misc for (Widget w : new Widget[] { headerRightContainer, frozenRightContainer, footerRightContainer, scrollableLeftContainer }) { w.getElement().getParentElement().getStyle().setOverflow(Style.Overflow.HIDDEN); } hive.getElement().getStyle().setTableLayout(Style.TableLayout.FIXED); hive.getElement().getStyle().setPosition(Style.Position.RELATIVE); for (CellTable<?> tbl : new CellTable<?>[] { headerLeft, headerRight, frozenLeft, frozenRight, scrollableLeft, scrollableRight, footerLeft, footerRight }) { tbl.setTableLayoutFixed(true); } // header headerLeft.setHeaderBuilder(new ThemedHeaderOrFooterBuilder<T>(headerLeft, false, this)); headerLeft.setFooterBuilder(new NullHeaderOrFooterBuilder<T>(headerLeft, true)); headerRight.setHeaderBuilder(new ThemedHeaderOrFooterBuilder<T>(headerRight, false, this)); headerRight.setFooterBuilder(new NullHeaderOrFooterBuilder<T>(headerRight, true)); // footer footerLeft.setHeaderBuilder(new NullHeaderOrFooterBuilder<T>(footerLeft, false)); footerLeft.setFooterBuilder(new ThemedHeaderOrFooterBuilder<T>(footerLeft, true)); footerRight.setHeaderBuilder(new NullHeaderOrFooterBuilder<T>(footerRight, false)); footerRight.setFooterBuilder(new ThemedHeaderOrFooterBuilder<T>(footerRight, true)); // data bodies for (GridSection<?> section : new GridSection<?>[] { frozenLeft, frozenRight, scrollableLeft, scrollableRight }) { GridSection<T> gSection = (GridSection<T>) section; gSection.setHeaderBuilder(new NullHeaderOrFooterBuilder<T>(gSection, false)); gSection.setFooterBuilder(new NullHeaderOrFooterBuilder<T>(gSection, true)); } for (GridSection<?> section : new GridSection<?>[] { headerLeft, headerRight, frozenLeft, frozenRight, scrollableLeft, scrollableRight, footerLeft, footerRight }) { section.setAutoHeaderRefreshDisabled(true); } for (GridSection<?> section : new GridSection<?>[] { headerLeft, headerRight, footerLeft, footerRight }) { section.setAutoFooterRefreshDisabled(true); } // cells installCellBuilders(); scrollableRightContainer.addScrollHandler(new ScrollHandler() { @Override public void onScroll(ScrollEvent event) { int aimTop = scrollableRightContainer.getElement().getScrollTop(); int aimLeft = scrollableRightContainer.getElement().getScrollLeft(); scrollableLeftContainer.getElement().setScrollTop(aimTop); int factTopDelta = aimTop - scrollableLeftContainer.getElement().getScrollTop(); if (factTopDelta > 0) { scrollableLeftContainer.getElement().getStyle().setBottom(factTopDelta, Style.Unit.PX); } else { scrollableLeftContainer.getElement().getStyle().clearBottom(); } headerRightContainer.getElement().setScrollLeft(aimLeft); int factLeftDelta0 = aimLeft - headerRightContainer.getElement().getScrollLeft(); if (factLeftDelta0 > 0) { headerRightContainer.getElement().getStyle().setRight(factLeftDelta0, Style.Unit.PX); } else { headerRightContainer.getElement().getStyle().clearRight(); } frozenRightContainer.getElement().setScrollLeft(aimLeft); int factLeftDelta1 = aimLeft - frozenRightContainer.getElement().getScrollLeft(); if (factLeftDelta1 > 0) { frozenRightContainer.getElement().getStyle().setRight(factLeftDelta1, Style.Unit.PX); } else { frozenRightContainer.getElement().getStyle().clearRight(); } footerRightContainer.getElement() .setScrollLeft(scrollableRightContainer.getElement().getScrollLeft()); int factLeftDelta2 = aimLeft - footerRightContainer.getElement().getScrollLeft(); if (factLeftDelta2 > 0) { footerRightContainer.getElement().getStyle().setRight(factLeftDelta2, Style.Unit.PX); } else { footerRightContainer.getElement().getStyle().clearRight(); } } }); ghostLine = Document.get().createDivElement(); ghostLine.addClassName(RULER_STYLE); ghostLine.getStyle().setPosition(Style.Position.ABSOLUTE); ghostLine.getStyle().setTop(0, Style.Unit.PX); ghostColumn = Document.get().createDivElement(); ghostColumn.addClassName(COLUMN_PHANTOM_STYLE); ghostColumn.getStyle().setPosition(Style.Position.ABSOLUTE); ghostColumn.getStyle().setTop(0, Style.Unit.PX); addDomHandler(new DragEnterHandler() { @Override public void onDragEnter(DragEnterEvent event) { if (DraggedColumn.instance != null) { if (DraggedColumn.instance.isMove()) { event.preventDefault(); event.stopPropagation(); DraggedColumn<T> target = findTargetDraggedColumn(event.getNativeEvent().getEventTarget()); if (target != null) { showColumnMoveDecorations(target); event.getDataTransfer().<XDataTransfer>cast().setDropEffect("move"); } else { event.getDataTransfer().<XDataTransfer>cast().setDropEffect("none"); } } else { } } else { event.getDataTransfer().<XDataTransfer>cast().setDropEffect("none"); } } }, DragEnterEvent.getType()); addDomHandler(new DragHandler() { @Override public void onDrag(DragEvent event) { if (DraggedColumn.instance != null && DraggedColumn.instance.isResize()) { event.stopPropagation(); /* int newWidth = event.getNativeEvent().getClientX() - DraggedColumn.instance.getCellElement().getAbsoluteLeft(); if (newWidth > MINIMUM_COLUMN_WIDTH) { event.getDataTransfer().<XDataTransfer> cast().setDropEffect("move"); } else { event.getDataTransfer().<XDataTransfer> cast().setDropEffect("none"); } */ } } }, DragEvent.getType()); addDomHandler(new DragOverHandler() { @Override public void onDragOver(DragOverEvent event) { if (DraggedColumn.instance != null) { event.preventDefault(); event.stopPropagation(); if (DraggedColumn.instance.isMove()) { DraggedColumn<T> target = findTargetDraggedColumn(event.getNativeEvent().getEventTarget()); if (target != null) { event.getDataTransfer().<XDataTransfer>cast().setDropEffect("move"); } else { hideColumnDecorations(); event.getDataTransfer().<XDataTransfer>cast().setDropEffect("none"); } } else { Element hostElement = Grid.this.getElement(); int clientX = event.getNativeEvent().getClientX(); int hostAbsX = hostElement.getAbsoluteLeft(); int hostScrollX = hostElement.getScrollLeft(); int docScrollX = hostElement.getOwnerDocument().getScrollLeft(); int relativeX = clientX - hostAbsX + hostScrollX + docScrollX; ghostLine.getStyle().setLeft(relativeX, Style.Unit.PX); ghostLine.getStyle().setHeight(hostElement.getClientHeight(), Style.Unit.PX); if (ghostLine.getParentElement() != hostElement) { hostElement.appendChild(ghostLine); } } } } }, DragOverEvent.getType()); addDomHandler(new DragLeaveHandler() { @Override public void onDragLeave(DragLeaveEvent event) { if (DraggedColumn.instance != null) { event.stopPropagation(); if (DraggedColumn.instance.isMove()) { if (event.getNativeEvent().getEventTarget() == (JavaScriptObject) Grid.this.getElement()) { hideColumnDecorations(); } } } } }, DragLeaveEvent.getType()); addDomHandler(new DragEndHandler() { @Override public void onDragEnd(DragEndEvent event) { event.stopPropagation(); hideColumnDecorations(); DraggedColumn.instance = null; } }, DragEndEvent.getType()); addDomHandler(new DropHandler() { @Override public void onDrop(DropEvent event) { DraggedColumn<?> source = DraggedColumn.instance; DraggedColumn<T> target = targetDraggedColumn; hideColumnDecorations(); DraggedColumn.instance = null; if (source != null) { event.preventDefault(); event.stopPropagation(); if (source.isMove()) { AbstractCellTable<T> sourceSection = (AbstractCellTable<T>) source.getTable(); // target table may be any section in our grid if (target != null) { Header<?> sourceHeader = source.getHeader(); Header<?> targetHeader = target.getHeader(); if (sourceHeader instanceof DraggableHeader<?> && targetHeader instanceof DraggableHeader<?>) { DraggableHeader<T> sourceDH = (DraggableHeader<T>) sourceHeader; DraggableHeader<T> targetDH = (DraggableHeader<T>) targetHeader; moveColumnNode(sourceDH.getHeaderNode(), targetDH.getHeaderNode()); } else { int sourceIndex = source.getColumnIndex(); int targetIndex = target.getColumnIndex(); GridSection<T> targetSection = (GridSection<T>) target.getTable(); boolean isSourceLeft = sourceSection == headerLeft || sourceSection == frozenLeft || sourceSection == scrollableLeft || sourceSection == footerLeft; boolean isTargetLeft = targetSection == headerLeft || targetSection == frozenLeft || targetSection == scrollableLeft || targetSection == footerLeft; sourceSection = isSourceLeft ? headerLeft : headerRight; targetSection = isTargetLeft ? headerLeft : headerRight; int generalSourceIndex = isSourceLeft ? sourceIndex : sourceIndex + frozenColumns; int generalTargetIndex = isTargetLeft ? targetIndex : targetIndex + frozenColumns; Header<?> header = sourceSection.getHeader(sourceIndex); if (header instanceof DraggableHeader) { ((DraggableHeader) header).setTable(targetSection); } if (generalSourceIndex != generalTargetIndex) { Column<T, ?> column = (Column<T, ?>) source.getColumn(); if (!(header instanceof DraggableHeader) || ((DraggableHeader) header).isMoveable()) { moveColumn(generalSourceIndex, generalTargetIndex); } } } } } else { Header<?> header = source.getHeader(); if (!(header instanceof DraggableHeader) || ((DraggableHeader) header).isResizable()) { int newWidth = Math.max( event.getNativeEvent().getClientX() - source.getCellElement().getAbsoluteLeft(), MINIMUM_COLUMN_WIDTH); // Source and target tables are the same, so we can // cast to DraggedColumn<T> with no care setColumnWidthFromHeaderDrag(((DraggedColumn<T>) source).getColumn(), newWidth, Style.Unit.PX); } } } } }, DropEvent.getType()); columnsChevron.getElement().getStyle().setPosition(Style.Position.ABSOLUTE); columnsChevron.getElement().addClassName(COLUMNS_CHEVRON_STYLE); getElement().appendChild(columnsChevron.getElement()); columnsChevron.addDomHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { PopupPanel pp = new PopupPanel(); pp.setAutoHideEnabled(true); pp.setAutoHideOnHistoryEventsEnabled(true); pp.setAnimationEnabled(true); MenuBar columnsMenu = new MenuBar(true); fillColumns(columnsMenu, headerLeft); fillColumns(columnsMenu, headerRight); pp.setWidget(columnsMenu); pp.setPopupPosition(columnsChevron.getAbsoluteLeft(), columnsChevron.getAbsoluteTop()); pp.showRelativeTo(columnsChevron); } private void fillColumns(MenuBar aTarget, final GridSection<T> aSection) { for (int i = 0; i < aSection.getColumnCount(); i++) { Header<?> h = aSection.getHeader(i); final Column<T, ?> column = aSection.getColumn(i); SafeHtml rendered; if (h.getValue() instanceof String) { String hVal = (String) h.getValue(); rendered = hVal.startsWith("<html>") ? SafeHtmlUtils.fromTrustedString(hVal.substring(6)) : SafeHtmlUtils.fromString(hVal); } else { Cell.Context context = new Cell.Context(0, i, h.getKey()); SafeHtmlBuilder sb = new SafeHtmlBuilder(); h.render(context, sb); rendered = sb.toSafeHtml(); } MenuItemCheckBox miCheck = new MenuItemCheckBox(!aSection.isColumnHidden(column), rendered.asString(), true); miCheck.addValueChangeHandler(new ValueChangeHandler<Boolean>() { @Override public void onValueChange(ValueChangeEvent<Boolean> event) { if (Boolean.TRUE.equals(event.getValue())) { showColumn(column); } else { hideColumn(column); } Grid.this.onResize(); } }); aTarget.addItem(miCheck); } } }, ClickEvent.getType()); ColumnSortEvent.Handler sectionSortHandler = new ColumnSortEvent.Handler() { @Override public void onColumnSort(ColumnSortEvent event) { boolean isCtrlKey = ((GridSection<?>) event.getSource()).isCtrlKey(); boolean contains = false; int containsAt = -1; for (int i = 0; i < sortList.size(); i++) { if (sortList.get(i).getColumn() == event.getColumn()) { contains = true; containsAt = i; break; } } if (!contains) { if (!isCtrlKey) { sortList.clear(); } sortList.insert(sortList.size(), new ColumnSortList.ColumnSortInfo(event.getColumn(), true)); } else { boolean wasAscending = sortList.get(containsAt).isAscending(); if (!isCtrlKey) { sortList.clear(); if (wasAscending) { sortList.push(new ColumnSortList.ColumnSortInfo(event.getColumn(), false)); } } else { sortList.remove(sortList.get(containsAt)); if (wasAscending) { sortList.insert(containsAt, new ColumnSortList.ColumnSortInfo(event.getColumn(), false)); } } } ColumnSortEvent.fire(Grid.this, sortList); } }; headerLeft.getColumnSortList().setLimit(1); headerLeft.addColumnSortHandler(sectionSortHandler); headerRight.getColumnSortList().setLimit(1); headerRight.addColumnSortHandler(sectionSortHandler); gridColor = PublishedColor.create(211, 211, 211, 255); regenerateDynamicTDStyles(); regenerateDynamicOddRowsStyles(); getElement().<XElement>cast().addResizingTransitionEnd(this); }
From source file:com.bradrydzewski.gwtgantt.gantt.GanttChartView.java
License:Open Source License
public void init() { taskScrollPanel.getElement().getStyle().setPosition(Position.ABSOLUTE); taskScrollPanel.getElement().getStyle().setOverflow(Overflow.SCROLL); //initialize the SVG panel initSVG();/* www.jav a2 s .co m*/ //add scroll handler taskScrollPanel.addScrollHandler(new ScrollHandler() { @Override public void onScroll(ScrollEvent event) { int hscroll = taskScrollPanel.getHorizontalScrollPosition() * -1; firstHeaderRow.getElement().getStyle().setLeft(hscroll, Unit.PX); secondHeaderRow.getElement().getStyle().setLeft(hscroll, Unit.PX); taskBackgroundPanel.getElement().getStyle().setLeft(hscroll, Unit.PX); display.fireEvent(event); // view.onScroll(taskScrollPanel.getHorizontalScrollPosition(), // taskScrollPanel.getScrollPosition()); } }); }